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66 lines
1.3 KiB
66 lines
1.3 KiB
package config
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import (
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"context"
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"path/filepath"
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"strings"
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"github.com/nacos-group/nacos-sdk-go/vo"
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"github.com/go-kratos/kratos/v2/config"
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)
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type Watcher struct {
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dataID string
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group string
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content chan string
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cancelListenConfig cancelListenConfigFunc
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ctx context.Context
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cancel context.CancelFunc
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}
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type cancelListenConfigFunc func(params vo.ConfigParam) (err error)
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func newWatcher(ctx context.Context, dataID string, group string, cancelListenConfig cancelListenConfigFunc) *Watcher {
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ctx, cancel := context.WithCancel(ctx)
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w := &Watcher{
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dataID: dataID,
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group: group,
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cancelListenConfig: cancelListenConfig,
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content: make(chan string, 100),
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ctx: ctx,
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cancel: cancel,
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}
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return w
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}
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func (w *Watcher) Next() ([]*config.KeyValue, error) {
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select {
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case <-w.ctx.Done():
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return nil, w.ctx.Err()
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case content := <-w.content:
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k := w.dataID
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return []*config.KeyValue{
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{
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Key: k,
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Value: []byte(content),
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Format: strings.TrimPrefix(filepath.Ext(k), "."),
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},
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}, nil
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}
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}
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func (w *Watcher) Close() error {
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err := w.cancelListenConfig(vo.ConfigParam{
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DataId: w.dataID,
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Group: w.group,
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})
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w.cancel()
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return err
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}
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func (w *Watcher) Stop() error {
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return w.Close()
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}
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